private void TestDrop()
{
Outline.FlagTestDrop = false;
Indicator.FullPanelEdge = ((Control.ModifierKeys & Keys.Shift) != 0);
if ((Control.ModifierKeys & Keys.Control) == 0)
{
Indicator.TestDrop();
if (!Outline.FlagTestDrop)
{
DockPane pane = DockHelper.PaneAtPoint(Control.MousePosition, DockPanel);
if (pane != null && DragSource.IsDockStateValid(pane.DockState))
{
pane.TestDrop(DragSource, Outline);
}
}
if (!Outline.FlagTestDrop && DragSource.IsDockStateValid(DockState.Float))
{
FloatWindow floatWindow = DockHelper.FloatWindowAtPoint(Control.MousePosition, DockPanel);
if (floatWindow != null)
{
floatWindow.TestDrop(DragSource, Outline);
}
}
}
else
{
Indicator.DockPane = DockHelper.PaneAtPoint(Control.MousePosition, DockPanel);
}
if (!Outline.FlagTestDrop)
{
if (DragSource.IsDockStateValid(DockState.Float))
{
Rectangle rect = FloatOutlineBounds;
rect.Offset(Control.MousePosition.X - StartMousePosition.X, Control.MousePosition.Y - StartMousePosition.Y);
Outline.Show(rect);
}
}
if (!Outline.FlagTestDrop)
{
Cursor.Current = Cursors.No;
Outline.Show();
}
else
{
Cursor.Current = DragControl.Cursor;
}
}